50 points! ! which of the binomials below is a factor of this trinomial? x2 - 3x - 4 a. x2 + 4 b. x + 4 c. x - 4 d. x + 8

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

Solve the equation for y. -1 = 1/3y + 11. will give 5 stars if answered correctly!

Ineed some on this. not sure how to solve.